Typewriter attachment



May 18 1926. 1,585,582

A. J. WILLEY ET AL.

TYPEWRITER ATTACHMENT ,Flled Juhe 50, 1924 g s e t -sh et 1 May 18 1926.

. 1,585,582 A. J. WILLEY ET AL TYPEWRITER ATTACHMENT Filed June 30, 1924 2 Sheets-Sheet 2 INVENTORS Arronwgv May 18, 15926.

one an i ih'ltihl i" ALFRED J. VIILLEY AND FORREST EE, VAUGHN, OF HAMMOND, INDIANA.

TYPERVRETEB ATTACI-INEETNT.

Application filed June 30, 1924. Serial No. 723,347.

. nis invention relates to typewriter attachment and has for its primary object the construction of an attachment whereby a carriage is automatically returned to normal position.

An object of the invention is the provi sion of mechanical. power means for returning the carriage to normal posit-ion either auton'iatically operated or manually operated.

A feature of our 'ivcntion is the novel manner of constructing and arranging the parts so that the carriage may be returned to normal position upon rea hing a predetermined distance of travel or may he immediately returned to normal. position at the will of the operator.

With these and other objects in view the invention will be better understood from the following detailed description taken in connection with the accompanying drawings wherein Fig. 1 is a diagrammatic View illustrating the application of our invention to a typewriter.

Fig. 2 is a rear elevation of the typewriter with the device applied thereto.

Fig. 3 is a detailed sectional view.

Fig. 4; is a sectional View through the manually operated switch.

Fig. 5 is a diagrammatic View of the circuit.

Again referring to the drawing illustrating one of the many constructions of our invention the numeral 1 designates an ordinary typewriter frame upon which is mounted for movement the usual carriage 2. This carriage 2 carries the usual stops 3 and is controlled by the spacer lever 4- of any well known construction. Our improved attachment comprises a. motor 5 holted to the frame in the most convenient position and on the arn'iature shaft is mounted a drum 6. An arm '7 projects from the'lever 4. and carries a pulley 8 while a second pulley 9 is carried by the bracket 10 on the motor. A third pulley 11 is connected to the carriage. A cable 12 has one end attached to the spacer lever and is fed around the pulley in the proper direction to be wound upon the drum 6 and in this winding operation releases the carriage and draws same to normal position. For the purpose of accomplishing this manually or auto-math eally predetermined positions of the riage we provide a circuit closer 13 mounted on the frame and consisting of a pivoted switch blade 14 for bridging the contact 15 forming a break in the motor circuit 16. This switch blade is operated by the pivotally mounted shifter 17 which may be of any suitable design having diverging portions arranged in the path of movement of the stops 3 so that in adjustment of the stops the switch may be thrown in any predetermined position of the carriage. As far as we have proceeded it will be seen that after the stops 3 are set the circuit closer is automatically closed when the carriage reaches a position for which the stops 3 are set, the stops 8 striking the circuit closer and close the motor circuit for setting the motor in operation and retracting the carriage. When the carriage has returned the proper distance another stop engages and opens the circuit closer.

As quite often it is necessary to return the carriage before the same has been fully advanced we provide at the front of the typewriter frame a manually operated switch 18 which may be of any suitable construction but illustrated as a button plunger 19 grounded to and slidable in the frame to engage and disengage contact 20 forming the terminal for a conductor 21 that runs to the motor brushes;

From the foregoing description taken in connection with the accompanying drawing it will be apparent that we provide mechanism which is either automatic in its operation or manually controlled and which may be set for any position of the typewriter carriage and which is of substantial construction and positive in its operation.

It is, of course, to be understood that the invention may be constructed in various other manners and the parts associated in different relations therefore, we do not desire to be limited in any ianner exceptas set forth in the claim hereunto appended.

Having thus described our machine what we claim is:

The combination with a typewriter including a carriage, stop members, and a spacer lever for the carriage, of an electrically driven element carried by the frame of the typewriter including an operating shaft and a drum on the operating shaft, a bracket on the carriage including a pulley arm on the driven element including :1.

pulley, a connecting element operable on the carriage and operatively engaging the pulley of the bracketand the pulley oi the arm and having one end connected for Winding relationwith the drum and an opposite end connected to the spacer lever, and meane for controlling the circuit of the driven element, said means including a switch and a member pivotally mounted on the frame of the typewriter with portions thereof: disposed in the path of the travel of the st op members for operating the switch.

In testimony whereof we affix our signacures.

ALFRED J. WILLEY. FORREST H. VAUGHM. 

